Patent US3876746A successfully refreshed from Google Patents.
US3876746A
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Method for custom fitting ski boots
Assignee: Globeride Inc
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Filing: 1972-10-18
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Granted: 1975-04-08
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Expires: 1992-10-18
Abstract
Abstract Method for custom fitting ski boots by injection comprises injecting a flowable injection material into a suitable cavity in the boot against a predetermined back pressure, suitably created by air or other gas, and maintaining the back pressure during solidification or retention of the fitting material.
Inventors
- 👤 Alden W Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:53
CPC Classifications
A; A43; A43D; A43D1/00; A43D1/02; A43D1/027; A43B; A43B3/00; A43B3/26; A43B5/00; A43B5/04; A43B5/0405
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
IN THE METHOD OF CUSTOM FITTING A SKI BOOT COMPRISING AN OUTER SHELL, A LINER ASSEMBLY DISPOSED WITHIN SAID SHELL, SAID SHELL AND SAID LINER DEFINING IN PART AT LEAST ONE CAVITY THEREBETWEEN, WHICH METHOD COMPRISES POSITIONING SAID BOOT ON A FOOT OF A PERSON TO BE FITTED, INJECTING INTO SAID CAVITY A FLOWABLE FITTING MATERIAL, AND RETAINING SAID FITTING MATERIAL WITHIN SAID CAVITY, THE IMPROVEMENT COMPRISING ESTABLISHING WITHIN SAID CAVITY A GAS PHASE HAVING A SUPERATMOSPHERIC PRESSURE, INJECTING SAID FITTING MATERIAL INTO SAID CAVITY AGAINST THE BACK PRESSURE EXERTED BY SAID GAS PHASE, AND MAINTAINING SAID BACK PRESSURE AT A PREDETERMINED SUBSTANTIALLY CONSTANT VALUE UNTIL SAID FITTING MATERIAL IS RETAINED WITHIN SAID CAVITY.
Claim 2
Dependent Claim
114 words
IN THE METHOD OF CUSTOM FITTING A SKI BOOT COMPRISING AN OUTER SHELL, A LINER ASSEMBLY DISPOSED WITHIN SAID SHELL, SAID SHELL AND SAID LINER DEFINING IN PART AT LEAST ONE CAVITY THEREBETWEEN, WHICH METHOD COMPRISES POSITIONING SAID BOOT ON A FOOT OF A PERSON TO BE FITTED, INJECTING INTO SAID CAVITY A FLOWABLE FITTING MATERIAL, AND RETAINING SAID FITTING MATERIAL WITHIN SAID CAVITY, THE IMPROVEMENT COMPRISING ESTABLISHING WITHIN SAID CAVITY A GAS PHASE HAVING A SUPERATMOSPHERIC PRESSURE, INJECTING SAID FITTING MATERIAL INTO SAID CAVITY AGAINST THE BACK PRESSURE EXERTED BY SAID GAS PHASE, AND MAINTAINING SAID BACK PRESSURE AT A PREDETERMINED SUBSTANTIALLY CONSTANT VALUE UNTIL SAID FITTING MATERIAL IS RETAINED WITHIN SAID CAVITY.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein said outer shell is formed of a substantially rigid material.
Claim 4
Dependent Claim
21 words
The method of claim 2, wherein there is associated with said cavity a bladder member adapted to receive said fitting material.
Claim 5
Dependent Claim
20 words
The method of claim 3, wherein said back pressure is within the range of about 0.5 to about 4.0 psig.
Claim 6
Dependent Claim
17 words
The method of claim 3, wherein said back pressure is within the range of about 1-2 psig.
Claim 7
Dependent Claim
19 words
The method of claim 3, wherein said flowable material is thermoplastic and melts within the range of about 120.degree.-180.degree.F.
Claim 8
Dependent Claim
56 words
The method of claim 3 which includes as a step preliminary to injecting said fitting material, pressurizing said bladder with a gas to a pressure level consistent with the comfort or performance requirements of the user, noting the pressure level, and injecting said fitting material, maintaining said pressure during injection and solidification of the fitting material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |